Going into 4X4 mode without any command
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Senior User
Joined: Sep 2004
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Going into 4X4 mode without any command
My 2001 EB 4x4 Expedition [65,000 miles] w/ the big engine is switching to 4x4 drive all by itself -did it 2 times so far.
It hasn't been wet, we're in AZ and since here it did it twice in parking lots.
The last time it did it [last night] I moved the selector **** to 4H and back to AWD and could hear a motor or something move, then I backed up a few feet and I was back into 2WD.
The first time it happend about 400 miles ago I was pulling into Flying J and could feel the front end get stiff and noisy. At first I thought it was because of the texture of the asphalt but as soon as I turned the wheel I could feel resistance and knew it was in 4 WD, and the dash indicator was on.
Backing up a few feet returned it to 2WD.
Both times the 4X4 indicator light was on on the instrument panel.
Is there anything I need to do or maintain to stop this from happening again?
It hasn't been wet, we're in AZ and since here it did it twice in parking lots.
The last time it did it [last night] I moved the selector **** to 4H and back to AWD and could hear a motor or something move, then I backed up a few feet and I was back into 2WD.
The first time it happend about 400 miles ago I was pulling into Flying J and could feel the front end get stiff and noisy. At first I thought it was because of the texture of the asphalt but as soon as I turned the wheel I could feel resistance and knew it was in 4 WD, and the dash indicator was on.
Backing up a few feet returned it to 2WD.
Both times the 4X4 indicator light was on on the instrument panel.
Is there anything I need to do or maintain to stop this from happening again?
Logistics Pro
Joined: Oct 2000
Posts: 3,960
Likes: 5
From: All over Texas
It sounds like your GEM is "confused." You can take it to Ford and they'll run a diagnostic test with a scan tool hooked into the data link connector under the dash. Hopefully there will be a diagnostic trouble code present for them to track down the problem.
FWIW, I'm in about the same boat as you are, but mine won't disengage back out of 4wd so I added a switch to completely turn 4wd off.
FWIW, I'm in about the same boat as you are, but mine won't disengage back out of 4wd so I added a switch to completely turn 4wd off.
Post Fiend
Joined: Jun 2003
Posts: 5,983
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I don't know off hand. I must admit to knowing a REALLY good electrical gremlin tech at my Ford dealership. He hooks up a number of pieces of diagnostic equipment that illustrate the signal (or lack there of) from each sensor.
